Home
Class 12
PHYSICS
Two identical capacitors, have the same ...

Two identical capacitors, have the same capacitance C. One of them is charged to potential `V_1` and the other `V_2`. The negative ends of the capacitors are connected together. When the poistive ends are also connected, the decrease in energy of the combined system is

A

`C/4(V_1^2-V_2^2)`

B

`C/4(V_1^2+V_2^2)`

C

`C/4(V_1-V_2)^2`

D

`C/4(V_1+V_2)^2`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 73

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos
  • NTA NEET SET 75

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos
NTA MOCK TESTS-NTA NEET SET 74-PHYSICS
  1. In an AC circuit the instantaneous values of emf and current are e=2...

    Text Solution

    |

  2. A charge Q is uniformly distributed over the surface of two conducting...

    Text Solution

    |

  3. Two identical capacitors, have the same capacitance C. One of them is ...

    Text Solution

    |

  4. A body of mass m is placed on the earth's surface . It is taken from t...

    Text Solution

    |

  5. Two plants A and B have the same average density . Their radii RA and ...

    Text Solution

    |

  6. Three rods of the same dimension have thermal conductivity 3K , 2K an...

    Text Solution

    |

  7. A gas expands with temperature according to the relation V=KT^(2/3).Wo...

    Text Solution

    |

  8. An ideal gas is taken through the cycle A rarr B rarr C rarr A As show...

    Text Solution

    |

  9. One mole of an ideal monoatomic gas at temperature T0 expands slowly a...

    Text Solution

    |

  10. H^(+), He^(+) and O^(++) all having the same kinetic energy pass thro...

    Text Solution

    |

  11. A bar mangnet has length 3 cm cross sectional area 2 cm^(2) and mag...

    Text Solution

    |

  12. A particle shows distance-time curve as given in this figure. The maxi...

    Text Solution

    |

  13. A bomb is dropped from an aeroplane flying horizontally with a velocit...

    Text Solution

    |

  14. A block of mass 1 kg lies on a horizontal surface in a truck. The coef...

    Text Solution

    |

  15. Two masses A and B of 10 kg and 5 kg, respectively , are connected wit...

    Text Solution

    |

  16. A sample contains large number of nuclei. The probability that a nucle...

    Text Solution

    |

  17. A 0.2 mL sample of a solution containing 1.0xx10^(-7) curie of .(1)^(3...

    Text Solution

    |

  18. Two springs with negligible masses and force constants k1=200(N)/(m) a...

    Text Solution

    |

  19. Consider the given system of mass m and spring constant k. Find the ma...

    Text Solution

    |

  20. Light of two different frequencies whose photons have energies 1eV and...

    Text Solution

    |